Question about 1998 Chevrolet Cavalier

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My car is running hot within 1 mile of me driving it...my fan kicks on when it wants to....i need to know how to fix it myself

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Replace coolant temp, sensor and check for a bad fan relay. check relay first ! to test the fans, run a wire from positive on battery to positive on fan connection. then run a wire from negative battery post to neg, connection on fan. if the motors are ok. the fans will turn on. and make sure you have 12 volts going to fan motors. check relay first!! the fans on a typical engine only work when idling or going slow to prevent it from heating up. have a good day!! make sure there is no coolant leaks anywhere!! this will cause it to overheat also. if need be replace coolant pressure cap on overflow, might not be holding pressure.

Posted on Nov 12, 2010

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Posted on Jan 02, 2017

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With a hot engine - and it depends how hot the engine is - the fan will only kick in to prevent overheating. In heavy slow moving traffic or a traffic jam, the fan will kick in if needed.

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Possible causes of overheating are:
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Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

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